Cup holder



FIG. 1 is a perspective view from the front, right and top of anornamental design for a cup holder.

FIG. 2 is a front elevational view of FIG. 1, the right side, left side,and rear all appearing the same.

FIG. 3 is a top plan view of FIG. 1; and,

FIG. 4 is a bottom plan view of FIG. 1.

The broken line portions of the drawings form no part of the claimeddesign.

CLAIM The ornamental design for a cup holder, as shown and described.